Eggs??

[dib]

I noticed this line of what looks like it could be eggs on the glass. Actually there are 3 different ones. Any idea what it's from? I have 2 clownfish, typical snails and hermits clean up crew, 2 peppermint shrimp, and an emerald crab.
Sorry for the dirty glass, but I don't want to disturb them.

 

[ksigaekdb]

Cerith snail eggs.

 

[dib]

Oh that's cool! What are the chances they will survive? And how long before they would hatch?